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Solar Disinfection of Drinking Water

Prompted by an understanding of the prevailing conditions and needs in the developing countries regarding the safety of water supplies in rural communities, and the rampant enteric diseases, a pertinent study was launched by us on June 4, 1979. this study, involving a series of experiments carried out over a period of more than two years, aimed at assessing the feasibility of solar disinfection of small quantities of drinking water that would satisfy the daily needs of individuals or a family. These experiments essentially consisted of subjecting artificially contaminated water in small, transparent containers, 1 to 3 litres in capacity, to direct sunlight for varying periods of exposure. The highly encouraging results of the numerous experiments demonstrated repeatedly the destructive effect of sunlight on pathogenic and non-pathogenic organisms.

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